Search found 141 matches

by yipster
Thu Jan 27, 2005 7:18 pm
Forum: Off topic forum
Topic: Lord Rosse's "Leviathan"
Replies: 15
Views: 9177

Re: Lord Rosse's "Leviathan"

My old man liked getting to the bottom of old inventions. He also published the analysis of the water ram -- you know, that little device you put into a small stream, which uses the inertia of the flowing water to pump water uphil. Around the turn of the century, many rural settlements used a ram p...
by yipster
Tue Jan 25, 2005 11:35 pm
Forum: Tools and Construction
Topic: Water/methanol
Replies: 4
Views: 4419

Re: Water/methanol

Water injection was evaluated scientifically in the 1930’s by H. Ricardo who demonstrated that one can basically double the power output of an engine using water/methanol that sure is interesting and i wonder why not used more comonly. elsewhere reading about superheated steam was mentioned burni...
by yipster
Tue Jan 25, 2005 11:25 am
Forum: Off topic forum
Topic: Aircraft engine joke
Replies: 15
Views: 9457

Re: Aircraft engine joke

Ah, yes ... the dreaded seven-engine approach :)
thanks for checking Mark.
i copied from my favorite boatdesign forum and started thinking i had to verify the lighthouse lol story.
by yipster
Mon Jan 24, 2005 12:50 pm
Forum: Off topic forum
Topic: Aircraft engine joke
Replies: 15
Views: 9457

Re: Aircraft engine joke

This is the transcript of the ACTUAL radio conversation of a British Naval ship and the Irish, off the coast of Kerry, Oct 95. Radio conversation released by the Chief of Naval Operations 10-10-95 IRISH: Please divert your course 15 degrees to the South, to avoid a collision. BRITISH: Recommend you ...
by yipster
Sun Jan 23, 2005 6:51 pm
Forum: Valveless pulsejet forum
Topic: Tube within a tube
Replies: 4
Views: 3723

Re: Tube within a tube

I've seen this valveless pulsejet design before, but I thought someone would like to try and make one. You have to scroll down the dubious site to find the valveless pulsejet, kind of a Tharratt cap only more so. http://www.alternative-technologies.org/aircraft.html scrolling all the way down is a ...
by yipster
Wed Jan 19, 2005 10:35 pm
Forum: Off topic forum
Topic: electric rocket
Replies: 3
Views: 3054

Re: electric rocket

Pezman, dont know if your plasma thruster is all together another engine. the teflon for reaction sounds odd to me, have not found the princeton plans yet but sure, why not of interest to all. as a concept i am in awe. see the movie at http://www.abc.net.au/catalyst/stories/s1185537.htm and wonder i...
by yipster
Mon Jan 17, 2005 6:29 pm
Forum: Off topic forum
Topic: electric rocket
Replies: 3
Views: 3054

electric rocket

girlfrend wants to play cards on the net so i quikly only park the link to electric rockets here http://science.nasa.gov/newhome/headlin ... pr99_2.htm
huigens, titan and this engine discussion later.
by yipster
Wed Jan 12, 2005 9:29 pm
Forum: Valveless pulsejet forum
Topic: Turbulence
Replies: 1
Views: 2746

Re: Turbulence

thanks, have it printed and framed on the wall allready :D
by yipster
Tue Jan 11, 2005 9:27 pm
Forum: Valved pulsejet forum
Topic: A possible fractal in a pulse combustor ...
Replies: 22
Views: 16375

Re: A possible fractal in a pulse combustor ...

more exciting to watch it materialize
as artform i've been playing with fractals and have seen mindblowing (speeded) animated 3d fractal movies.
might still have "juliet" and "mandelson" fractal codes on floppy accepting variables that draw amazing pictures.
by yipster
Sat Jan 08, 2005 6:43 pm
Forum: Valveless pulsejet forum
Topic: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO
Replies: 30
Views: 26980

Re: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO

in answer to webpilots earlyer qestion on bigger boats http://www.knatter-tom.de/geschichte.html says Mr. Rowland Payne befasste sich in den 70er Jahren intensiv mit einer Einrohr-Variante eines Reaktionsantriebes mit, der er es schaffte, ein 9 Meter Boot mit 0.3 m/s fortzubewegen. also at http://ww...
by yipster
Sat Jan 08, 2005 12:07 pm
Forum: Off topic forum
Topic: Pulsejet Poster for Tsunami Disaster Relief
Replies: 14
Views: 7825

Re: Pulsejet Poster for Tsunami Disaster Relief

not about posters but waves and tsunami, wave energy, mixed waves, above and below water waves etc. maybe you find something interesting here http://electron9.phys.utk.edu/phys135d/modules/m10/sound.htm Interference of Sinusoidal Waveforms applet http://webphysics.ph.msstate.edu/jc/library/15-11/sim...
by yipster
Thu Jan 06, 2005 10:51 pm
Forum: Valveless pulsejet forum
Topic: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO
Replies: 30
Views: 26980

Re: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO

biggest poppop boat i heard about was a small single seater boat going footstep speed.
have some smal and bigger putput tubing here i played with.
i really wonder what say "Steam Pulse Jet Driven" can evolve into.
keep me posted!
by yipster
Thu Jan 06, 2005 10:17 pm
Forum: Off topic forum
Topic: Happy New Year
Replies: 11
Views: 7226

Re: Happy New Year

there is lol yes? first time i saw "that" was a few weeks ago and i dont think those birds ment any harm. did not know it was on this forum before. could not easely find a funny visual for 2005 so i put "this" on. as a H2O freak thinking we all go wet breaking the ice entering the new year. some clo...
by yipster
Wed Jan 05, 2005 5:04 pm
Forum: Off topic forum
Topic: Happy New Year
Replies: 11
Views: 7226

Re: Happy New Year

Image